Ground Rod branded as Huadian from our company are using special electroforming technology to apply 99.9% pure copper uniformly to distribute on low carton steel core so as to make copper and steel core to combine perfectly. If two are not combined closely, when power on it will cause battery reaction that metal iron from positive end will have oxidization reaction and iron ion will be lost and steel core will be corroded quickly. It has characteristics such as thick copper coating more than 0.25 mm ,good adhesion ,non peeling off and thread can be rolled etc. The advantages are good tensile strength more than 600Newton/square mm and good in anticorrosion that life span is more than 50 years or more, constant low resistance and good plasticity which had the characteristics of copper as well as steel. Copper Ground Rod branded as Huadian from our company are high in protection against natural corrosion and electrochemical reaction when rooted deeply in ground. Ground rod and grind wiring are welded by heat metling welding agent from our company so that the grind device are wholly protected by the copper which is really ground device free of maintenance. Copper Ground Rod branded as Huadian are equipped with parts such as coupler, driving head and driller. They can be connected by HD-DM copper coupler in same shaft according to different geology quality and application requirement. Die casted copper ground rod can be increased with length randomly. Top are connected by HD-DMQ driving head(connecting bolt) which are used for beating in rooting grind rod. The bottom end is connected with special drilling head(connecting bolt) for rooting ground rod Drawing 2 Coupling Drawing 3 Drilling Head Drawing 4 Driving Head drawing 5 ground rod Ground Rod branded as Huadian from our company are using special electroforming technology to apply 99.9% pure copper uniformly to distribute on low carton steel core so as to make copper and steel core to combine perfectly. If two are not combined closely, when power on it will cause battery reaction that metal iron from positive end will have oxidization reaction and iron ion will be lost and steel core will be corroded quickly. It has characteri